单项选择题

The expression FIRST MAGNITUDE is usually used to refer only to bodies of magnitude（）.

A.1.5 and greater
B.1.25 and greater
C.1.0 and greater
D.0.5 and greater

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单项选择题

A.hold anchor
B.leave anchor
C.let go anchor
D.weigh anchor

单项选择题

A.reduce the length of the cable
B.pay out more anchor cable
C.back the engines
D.swing the rudder several times to work the anchor into the bottom

单项选择题

A.Distress
B.Safety
C.All clear
D.Urgency